I don't disagree and think it is a great thread. There is a lot of knowledge to be shared on beams. Everyone should realize there is no substitution for diving into some mechanics of materials and get into the math if one wants to pursue building an aircraft structure. Beams aside, the trick is often how to shear the load into and out of the caps. How fast can you do it without a delamination of the joint or overloading one of the fasteners causing it to unzip because the load was not distributed. Without a proper introduction of the load, the beam will not realize its full potential. I'll see if I can dig up some photos and start a thread showing some examples of joints.